vitamin

Niacin supplements

Half of the 12,413 niacin supplements in the NIH label database that print an amount list 20 mg or less per serving; the middle half list 13.2 mg to 48 mg, and 35% of the 12,334 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 295 products whose only supplement ingredient is niacin list a median of 500 mg, and 98% of them give more than the upper limit.

How much niacin do supplements contain?

The median product lists 20 mg per serving. One in ten lists 5 mg or less, one in ten 100 mg or more. The amount printed most often is 20 mg (2,521 products).

How do the amounts compare with the Daily Value and the upper limit?

The FDA Daily Value for niacin is 16 mg (adults and children 4 and older). The median product gives 125% of it per serving; the 90th percentile 625%.

The adult Tolerable Upper Intake Level is 35 mg a day (synthetic forms from supplements and fortified foods). At the most servings their labels direct, 4,377 of the 12,334 products with a plausible amount (35.5%) give more than that from the supplement alone (what counts as plausible).

The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.

Which products list the most niacin?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• NiaPlexKaruna1,000 mg
• Hb HDL BenefitPRN Physician Recommended Nutriceuticals1,000 mg
• Vitamin B3 Niacin 1000 mgLife Extension1,000 mg
• Niacinamide 1,000 mgNature's Life1,000 mg
• Memory BoostHighland Laboratories1,000 mg
• Timed Release Niacin 100 mgRugby1,000 mg
• First Step VitaminsVitalBulk1,000 mg
• Niacin 1000 mgVitalBulk1,000 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 26 mg; those entered in 2025, 20 mg.

In which products and brands?

Brands listing it most: Douglas Laboratories (253), Nature's Way (232), Nature's Plus (208), Bronson (96), Cellucor (92), Country Life (86), NOW (81), ProCaps Laboratories (79), Metagenics (78), Rainbow Light (75).

Every product listing niacin

12,779 products, A to Z by name (page 244 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Vol-Tab RxTrigen Laboratories · off the market20 mg
• Volatile Berry EruptionFN Formutech Nutrition20 mg
• Volatile Cherry LemonadeFN Formutech Nutrition20 mg
• Volatile Tropical PunchFN Formutech Nutrition20 mg
• Voost Energy Orange Mango FlavoredVoost16 mg
• Voost Hydrate Fruit PunchVoost16 mg
• Voost Men's Multi Blueberry Pomegranate FlavoredVoost16 mg
• Voost Women's Multi Orange GuavaVoost16 mg
• Vp-Pnv-DHAVirtus Pharmaceuticals20 mg
• VP-Vite RxVirtus Pharmaceuticals20 mg
• VP-ZEL TabsVirtus Pharmaceuticals600 mg as transcribed, likely a slip
• VPM Clean Protein UnflavoredNaturesPlus0.25 mg
• VPM Vegan Power Meal Naked Unflavored & UnsweetenedNatures Plus Source of Life Garden · off the market0.21 mg
• VShakeIVL Institute For Vibrant Living3.5 mg
• VX8 Blue Raspberry FlavourILN Iron Labs Nutrition24 mg
• Vysera-CLSBremenn Clinical · off the market56 mg
• W.L. EnergizerPriority One Nutritional Supplements3 mg
• WAC Adrenal-N-MoreWachters' · off the market50 mg
• Wake Up On TimeRise-N-Shine75 mg
• WandBlack Magic50 mg
• Want a Bump Mint Go BrrrBump Industriesin a blend
• Water Enhancer EnergyFabWa · off the market20 mg
• Water Enhancer Energy BerryFabWa · off the market20 mg
• Water Enhancer Energy Fantasy FruitFabWa · off the market20,000 mg as transcribed, likely a slip
• Water Enhancer Energy GrapeFabWa · off the market20 mg
• Water Enhancer Energy LemonFabWa · off the market20 mg
• Water Enhancer Energy OriginalFabWa · off the market20 mg
• Week Four: RenewDouglas Laboratories15 mg
• Week Four: RepairDouglas Laboratories95 mg
• Week Two: Detox AM PackDouglas Laboratories50 mg
• WeFunWeFun · off the marketin a blend
• Weight Gain +CapsulesNutrigain4 mg
• Weight Gain +SyrupNutrigain5 mg
• Weight Gain FormulaEatUP Originalin a blend
• Weight LossBPI30 mg
• Weight Loss Drink Mix French VanillaNatural Factors SlimStyles12 mg
• Weight Management PackDouglas Laboratories95 mg
• Weight Smart AdvancedBayer One A Day25 mg
• Well Adult MultiSundown Organics4 mg
• Well Men's MultiSundown Organics4.8 mg
• Well Women's MultiSundown Organics1.9 mg
• Wellavoh Daily Multi-Nutrient Complex For Women AM FormulaSonoran Bloom18 mg
• Wellavoh Daily Multi-Nutrient Complex For Women PM FormulaSonoran Bloom16 mg
• WellBetX Complete MultiNatural Factors50 mg
• WellBetX PGX Weight Management Shake ChocolateNatural Factors12 mg
• WellBetX PGX Weight Management Shake French VanillaNatural Factors12 mg
• WellBetX PGXWeight Management Shake ChocolateNatural Factors · off the market12 mg
• WellBetX Weight Loss Shake ChocolateNatural Factors · off the market12 mg
• WellBetX Weight Loss Shake French VanillaNatural Factors · off the market12 mg
• Wellness EssentialsMetagenics25 mg

Where next?

• Check an amount of niacin
• Labels above the upper limit
• All ingredients